Package java.security

Interface Summary
Certificate	This interface models a digital certificate which verifies the authenticity of a party.
DomainCombiner	A public interface used to combine two ProtectionDomains in a new ProtectionDomain and update the current Protection Domains associated with the current AccessControlContext.
Guard	This interface specifies a mechanism for querying whether or not access is allowed to a guarded object.
Key	This interfaces models the base characteristics that all keys must have.
Principal	This interface models an entity (such as a user or a certificate authority) for the purposes of applying the Java security model.
PrivateKey	This interface specified no methods.
PrivilegedAction<T>	This interface specifes a single run method that executes a privileged operation.
PrivilegedExceptionAction<T>	This interface defines a method that is called by AccessController.doPrivileged() in order to perform a privileged operation with higher privileges enabled.
PublicKey	This interface specified no methods.

Class Summary
AccessControlContext	AccessControlContext makes system resource access decsion based on permission rights.
AccessController	Access control context and permission checker.
AlgorithmParameterGenerator	AlgorithmParameterGenerator is used to generate algorithm parameters for specified algorithms.
AlgorithmParameterGeneratorSpi	AlgorithmParameterGeneratorSpi is the Service Provider Interface for the AlgorithmParameterGenerator class.
AlgorithmParameters	AlgorithmParameters is an Algorithm Parameters class which provides an interface through which the user can manage the parameters of an Algorithm.
AlgorithmParametersSpi	AlgorithmParametersSpi is the Service Provider Interface for the Algorithm Parameters class.
AllPermission	This class is a permission that implies all other permissions.
BasicPermission	This class implements a simple model for named permissions without an associated action list.
CodeSource	This class represents a location from which code is loaded (as represented by a URL), and the list of certificates that are used to check the signatures of signed code loaded from this source.
DigestInputStream	DigestInputStream is a class that ties an InputStream with a MessageDigest.
DigestOutputStream	DigestOutputStream is a class that ties an OutputStream with a MessageDigest.
GuardedObject	This class is an object that is guarded by a Guard object.
Identity	The Identity class is used to represent people and companies that can be authenticated using public key encryption.
IdentityScope	IdentityScope represents a scope of an identity.
KeyFactory	Key factories are used to convert keys (opaque cryptographic keys of type Key) into key specifications (transparent representations of the underlying key material).
KeyFactorySpi	KeyFactorySpi is the Service Provider Interface (SPI) for the KeyFactory class.
KeyPair	KeyPair serves as a simple container for public and private keys.
KeyPairGenerator	KeyPairGenerator is a class used to generate key-pairs for a security algorithm.
KeyPairGeneratorSpi	KeyPairGeneratorSpi is the interface used to generate key pairs for security algorithms.
KeyStore	Keystore represents an in-memory collection of keys and certificates.
KeyStoreSpi	KeyStoreSpi is the Service Provider Interface (SPI) for the KeyStore class.
MessageDigest	Message digests are secure one-way hash functions that take arbitrary-sized data and output a fixed-length hash value.
MessageDigestSpi	This is the Service Provider Interface (SPI) for MessageDigest class in java.security.
Permission	This class is the abstract superclass of all classes that implement the concept of a permission.
PermissionCollection	This class models a group of Java permissions.
Permissions	This class is a heterogeneous collection of permissions.
Policy	Policy is an abstract class for managing the system security policy for the Java application environment.
ProtectionDomain	This class represents a group of classes, along with their granted permissions.
Provider	This class represents a Java security architecture service provider.
SecureClassLoader	A Secure Class Loader for loading classes with additional support for specifying code source and permissions when they are retrieved by the system policy handler.
SecureRandom	An interface to a cryptographically secure pseudo-random number generator (PRNG).
SecureRandomSpi	SecureRandomSpi is the Service Provider Interface for SecureRandom providers.
Security	This class centralizes all security properties and common security methods.
SecurityPermission	This class provides a mechanism for specified named permissions related to the Java security framework.
Signature	Signature is used to provide an interface to digital signature algorithms.
SignatureSpi	SignatureSpi defines the Service Provider Interface (SPI) for the Signature class.
SignedObject	SignedObject is used for storing runtime objects whose integrity cannot be compromised without being detected.
Signer	Signer is a subclass of Identity.
UnresolvedPermission	This class is used to hold instances of all permissions that cannot be resolved to available permission classes when the security Policy object is instantiated.

Exception Summary
AccessControlException	This exception is thrown when the AccessController denies an attempt to perform an operation.
DigestException	This exception indicates that a generic message digest exception has occurred.
GeneralSecurityException	This class is the common superclass of all security exceptions.
InvalidAlgorithmParameterException	Thrown for an invalid security algorithm parameter.
InvalidKeyException	Thrown for an invalid key.
InvalidParameterException	Thrown when an invalid parameter is passed to a method of the JCA/JCE engine classes.
KeyException	This exception is thrown when there is a problem with a key.
KeyManagementException	This exception is thrown whenever a problem related to the management of security keys is encountered.
KeyStoreException	Indicates a problem with the key store.
NoSuchAlgorithmException	This exception is thrown when the requested security algorithm is not available
NoSuchProviderException	This exception is thrown when the requested security provider is not available.
PrivilegedActionException	This exception is thrown when an exception is thrown during a privileged action being performed with the AccessController.doPrivileged() method.
ProviderException	This exception indicates that a runtime problem was encounterd with a security provider.
SignatureException	This exception is thrown when a problem is encountered with a digital signature.
UnrecoverableKeyException	This exception is thrown when a key cannot be recovered from the key store.